Sony

Sony HVL-F20M External Flash Compact

3.9 (68 reviews)
3.7 oz

Compact and Stylish Flash for Enhanced Lighting ControlThe SONY flash HVL-F20M is a thin and compact external flash designed for easy operation and advanced lighting. Its unique mechanism allows you to rotate the light direction up to 75° with a single touch, making bounce shooting simple and con...

$140.00*
In Stock on Amazon.com
View on Amazon

*Price sourced from Amazon.com. Last updated:Jul 13, 2026.Price and availability are subject to change.

Affiliate Disclosure: Studio Supplies may earn a commission from qualifying purchases made through links on this page, at no additional cost to you. This helps support our editorial team.

Notice a mistake? Let Us Know

Overview

Compact and Stylish Flash for Enhanced Lighting Control

The SONY flash HVL-F20M is a thin and compact external flash designed for easy operation and advanced lighting. Its unique mechanism allows you to rotate the light direction up to 75° with a single touch, making bounce shooting simple and convenient. With a guide number of 20 and wireless control function, this flash delivers more light than a built-in flash and offers versatile lighting options for your photography needs.

  • Guide Number: 20 (2.0 inches (50 mm), ISO 100 m)
  • Rotation: Up to 75° light direction rotation
  • Wireless Control: Equipped with wireless control function
  • Weight: Approx. 3.7 oz (105 g) (batteries not included)

Key Features

Stylish small flash for easy operation and advanced lighting

The unique mechanism allows you to rotate the light direction up to 75° with a single touch. Easy operation allows you to enjoy bounce shooting

Guide Number: 20 (2.0 inches (50 mm), ISO 100 m)

More light than built-in flash, it can get light from about 5 meters away (teleposition, ISO 100, aperture F4)

Weight: Approx. 3.7 oz (105 g) (batteries not included)

Item Weight: 105.0 grams

Specifications

Flash Type
External Flash
Guide Number
20 (50mm, ISO 100m)
Bounce Angle
Up to 75°
Effective Range
Approx. 5 meters (teleposition, ISO 100, F4)
Weight
Approx. 105g (batteries not included)
Form Factor
Compact

Pros & Cons

👍 Pros

  • This compact external flash is stylish and small, making it convenient for easy operation and transport.
  • Its unique mechanism allows the light direction to rotate up to 75° with a single touch, facilitating bounce shooting.
  • With a guide number of 20 (at 50mm, ISO 100m), it offers more light output than typical built-in camera flashes.
  • It can illuminate subjects from approximately 5 meters away (teleposition, ISO 100, aperture F4), extending effective flash range.
  • Weighing approximately 105g (without batteries), it adds minimal bulk to your camera setup, enhancing portability.

👎 Cons

  • The guide number of 20, while better than built-in flashes, is relatively low compared to larger, more powerful external flash units.
  • It is a compact flash, which may not provide enough power or reach for large spaces or professional photography needs.
  • The bounce shooting angle is limited to 75° upwards, without specific mention of horizontal rotation or other directional adjustments.
  • The description does not specify battery type or estimated battery life, which are important considerations for continuous use.
  • Details about flash modes (e.g., TTL, manual) or advanced features beyond simple bounce are not provided.

Frequently Asked Questions

The Sony HVL-F20M external flash has a Guide Number of 20, measured at 50mm, ISO 100m. This indicates its power output relative to distance and ISO.
Yes, this flash features a unique mechanism that allows you to rotate the light direction up to 75° with a single touch, making bounce shooting easy.
The flash is quite compact and lightweight, weighing approximately 105 grams, excluding batteries.
Yes, it provides more light than a typical built-in flash, capable of illuminating subjects from about 5 meters away under specific conditions (teleposition, ISO 100, aperture F4).
Its compact size and bounce capability make it well-suited for easy operation and enhancing lighting in various situations where a small, portable flash is desired.